I run the tutorial. The default authentication cfg should be: com.sun.sgs.app.authenticators=com.sun.sgs.impl.auth.NullAuthenticator

I send simple string from client, the string like "xxxxxxxxxxxxxxxxxx".getBytes("UTF-8"). But i wonder to know where the server to receive the string. The code in the applistener: @Override public ClientSessionListener loggedIn(ClientSession session) { System.out.println("Fool Dog Logged In!"); MyLog.log("Fool Dog Logged In!"); return new DogListener(session,channel); }I think it works if send message. But no any print,no any log.

If i have to implement the ClientSession, i have to config the implementation class. Tell me how to config it.

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